Maddox, S. J.; Dunne, L.; Rigby, E.; Eales, S.; Cooray, A.; Scott, D.; Peacock, J. A.; Negrello, M.; Smith, D. J. B.; Benford, D.; Amblard, A.; Auld, R.; Baes, M.; Bonfield, D.; Burgarella, D.; Buttiglione, S.; Cava, A.; Clements, D.; Dariush, A.; de Zotti, G.; Dye, S.; Frayer, D.; Fritz, J.; Gonzalez-Nuevo, J.; Herranz, D.; Ibar, E.; Ivison, R.; Jarvis, M. J.; Lagache, G.; Leeuw, L.; Lopez-Caniego, M.; Pascale, E.; Pohlen, M.; Rodighiero, G.; Samui, S.; Serjeant, S.; Temi, P.; Thompson, M. and Verma, A.
(2010).
Herschel-ATLAS: the angular correlation function of submillimetre galaxies at high and low redshift.
Astronomy and Astrophysics, 518
L11/1-L11/5.
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Abstract
We present measurements of the angular correlation function of galaxies selected from the first field of the H-ATLAS survey. Careful removal of the background from galactic cirrus is essential, and currently dominates the uncertainty in our measurements. For our 250 ?m-selected sample we detect no significant clustering, consistent with the expectation that the 250 ?m-selected sources are mostly normal galaxies at z <~1. For our
350 ?m and 500 ?m-selected samples we detect relatively strong clustering with correlation amplitudes A of 0.2 and 1.2 at 1', but with relatively large uncertainties. For samples which preferentially select high redshift galaxies at z ~ 2?3 we detect significant strong clustering, leading to an estimate of r0 ~ 7?11 h?1 Mpc. The slope of our clustering measurements is very steep, ? ~ 2. The measurements are consistent with the idea that sub-mm sources consist of a low redshift population of normal galaxies and a high redshift population of highly clustered star-bursting galaxies.
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